Make ticket layout configurable

Added option for conference organizer to switch between ticket layouts (horizontal or vertical). Added test for the same.

app/controllers/admin/conferences_controller.rb

@@ -211,7 +211,7 @@ module Admin
                                          :vpositions_attributes, :use_volunteers, :color,
                                          :sponsorship_levels_attributes, :sponsors_attributes,
                                          :targets, :targets_attributes,
-                                         :campaigns, :campaigns_attributes, :registration_limit, :organization_id)
+                                         :campaigns, :campaigns_attributes, :registration_limit, :organization_id, :ticket_layout)
     end
   end
 end

app/controllers/physical_ticket_controller.rb

@@ -12,5 +12,6 @@ class PhysicalTicketController < ApplicationController
   def show
     @file_name = "ticket_for_#{@conference.short_title}"
     @user = @physical_ticket.user
+    @ticket_layout = @conference.ticket_layout.to_sym
   end
 end

app/models/conference.rb

@@ -57,6 +57,7 @@ class Conference < ActiveRecord::Base
             :end_date,
             :start_hour,
             :end_hour,
+            :ticket_layout,
             :organization, presence: true
 
   validates :short_title, uniqueness: true
@@ -73,6 +74,8 @@ class Conference < ActiveRecord::Base
   after_create :create_free_ticket
   after_update :delete_event_schedules
 
+  enum ticket_layout: [:portrait, :landscape]
+
   ##
   # Checks if the user is registered to the conference
   #

app/views/admin/conferences/edit.html.haml

@@ -17,6 +17,7 @@
         = image_tag @conference.picture.thumb.url
       = f.input :picture, label: false, hint: 'This will be displayed on the front page.'
       = f.hidden_field :picture_cache
+      = f.input :ticket_layout, as: :select, collection: Conference.ticket_layouts.keys, hint: "Layout type for tickets of the conference."
       = f.inputs name: 'Scheduling' do
         = f.input :timezone, as: :time_zone, hint: 'The conference time zone'
         = f.input :start_date, as: :string, input_html: { id: 'conference-start-datepicker', readonly: 'readonly' }

app/views/physical_ticket/show.pdf.prawn

@@ -1,4 +1,4 @@
-prawn_document(filename: @file_name, page_layout: :portrait, :page_size =>'A4' ) do |pdf|
+prawn_document(filename: @file_name, page_layout: @ticket_layout, :page_size =>'A4' ) do |pdf|
   # Vertical Layout
   top = pdf.bounds.top
   bottom = pdf.bounds.bottom